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scsi: ufs-qcom: enable UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION 

Newer revisions of QUALCOMM Technologies UFS host controller may not
advertise the correct version information in UFS HCI VER register.
To handle this, enable UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION to let
UFS standard host controller driver call into vendor specific
operation to get right UFS HCI VER register value.

Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
Yaniv Gardi 2015-05-17 18:55:06 +03:00 committed by James Bottomley
parent 9949e702e6
commit ae977587da
1 changed files with 12 additions and 0 deletions
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12
drivers/scsi/ufs/ufs-qcom.c
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@ -694,6 +694,16 @@ out:
return ret;
}
static u32 ufs_qcom_get_ufs_hci_version(struct ufs_hba *hba)
{
struct ufs_qcom_host *host = hba->priv;
if (host->hw_ver.major == 0x1)
return UFSHCI_VERSION_11;
else
return UFSHCI_VERSION_20;
}
/**
* ufs_qcom_advertise_quirks - advertise the known QCOM UFS controller quirks
* @hba: host controller instance
@ -718,6 +728,7 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba)
if (host->hw_ver.major >= 0x2) {
hba->quirks |= UFSHCD_QUIRK_BROKEN_LCC;
hba->quirks |= UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION;
if (!ufs_qcom_cap_qunipro(host))
/* Legacy UniPro mode still need following quirks */
@ -1026,6 +1037,7 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = {
.name = "qcom",
.init = ufs_qcom_init,
.exit = ufs_qcom_exit,
.get_ufs_hci_version = ufs_qcom_get_ufs_hci_version,
.clk_scale_notify = ufs_qcom_clk_scale_notify,
.setup_clocks = ufs_qcom_setup_clocks,
.hce_enable_notify = ufs_qcom_hce_enable_notify,